Stay up all night with Guardian Unlimited for the best election coverage. The polling stations close at 10pm, with the first results expected within an hour.
We'll have all the election results as they come in throughout the night, with our interactive map constantly updating so you can find out who your new MP is. (To see the political make-up of the country before election day, see this map.)
Our politics team will be providing rolling coverage of events as they happen, with election expert Lewis Baston providing instant analysis on the election blog. Check out his print-out-and-keep guide to the night.
Matthew Tempest will be blogging from the counts of two of London's most marginal constituencies: Battersea and Putney. And US blogger Markos Moulitsas will be reporting from the parties' election night parties.
If you're having friends over to watch the results come in, impress them with our election party pack. Nicola Jennings has created brilliant cut-out-and-keep masks of the party leaders, comedy hats and ties and a Guardian Unlimited swingometer.
In the meantime, if you haven't made up your mind how to vote, take a look at our interactive guides to the parties' policies and tactical voting before you cast your ballot.
And if you want to look back on the campaign, take a look at Tom Mitchelson's election highlights and our gallery of campaign images by Guardian photographers Dan Chung, Martin Argles and Sean Smith.
